ABB VD4 - Page 11

MEDIUM VOLTAGE PRODUCTS
11
5.3.2 General specifications of fixed circuit breakers with lh lateral operating mechanisms (12 - 17.5 - 24 kV)
Circuit breaker VD4/L12 VD4/L17 VD4/L24
Standards    
   
Rated voltage Ur [kV]   
Rated insulation voltage Us [kV]   
    
Impulse withstand voltage Up [kV]   
Rated frequency fr [Hz]   
 Ir [A]         
Rated duty breaking capacity
(symmetrical rated short-circuit current)
Isc [kA]  – –  – –  – –
        
        
      – – –
 Ik [kA]  – –  – –  – –
        
        
      – – –
Making capacity Ip [kA]  – –  – –  – –
        
        
      – – –
Sequence of operations    
Opening time [ms]   
Arcing time [ms]   
Total break-time [ms]   
Closing time [ms]   
Overall dimensions
(maximum)
H [mm]   
W [mm]   
D [mm] 



) 



) 



)
Pole center-distance P [mm]   
Weight (

) [kg] 



) 



) 



)


) 

) 

) 

)
Standardized dimensions table 

) 

) 

)


) 

) 

)
Wiring diagram without protection
device installed
  
   
Operating temperature [°C] 

) 

) 

)
Tropicalization    
Electromagnetic compatibility    
(
1
) 230 mm pole center-distance
(
2
) 300 mm pole center-distance
(
3
) increase the indicated weight by 20 kg for circuit breakers with REF 601 devices and 3 current sensors
(
4
) the rated current of the REF 601 device must be set in the relay in accordance with the circuit breaker’s rated current
(
5
) “IEC” or “CEI 0-16” version. If the “CEI 0-16” is required, the circuit breaker is always supplied with 3 phase current sensors (Rogowsky coils) installed on the actual circuit breaker and with a
loose toroidal TA. In the “CEI 0-16” version, the REF 601 device opens the circuit breaker by means of the undervoltage release -MU
(
6
) for operating temperature up to -25 °C and storage temperature up to -40 °C, please ask ABB
H
W
D